5TC9

Wild type TrCel7A catalytic domain in a closed state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.163 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structures of wild-type Trichoderma reesei Cel7A catalytic domain in open and closed states.

Bodenheimer, A.M.Meilleur, F.

(2016) FEBS Lett. 590: 4429-4438

  • DOI: 10.1002/1873-3468.12464

  • PubMed Abstract: 
  • Trichoderma reesei Cel7A efficiently hydrolyses cellulose. We report here the crystallographic structures of the wild-type TrCel7A catalytic domain (CD) in an open state and, for the first time, in a closed state. Molecular dynamics (MD) simulations ...

    Trichoderma reesei Cel7A efficiently hydrolyses cellulose. We report here the crystallographic structures of the wild-type TrCel7A catalytic domain (CD) in an open state and, for the first time, in a closed state. Molecular dynamics (MD) simulations indicate that the loops along the CD tunnel move in concerted motions. Together, the crystallographic and MD data suggest that the CD cycles between the tense and relaxed forms that are characteristic of work producing enzymes. Analysis of the interactions formed by R251 provides a structural rationale for the concurrent decrease in product inhibition and catalytic efficiency measured for product-binding site mutants.


    Organizational Affiliation

    Molecular and Structural Biochemistry Department, North Carolina State University, Raleigh, NC, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glucanase
A
432Hypocrea jecorina (strain QM6a)Gene Names: cel7a
EC: 3.2.1.-
Find proteins for G0RVK1 (Hypocrea jecorina (strain QM6a))
Go to UniProtKB:  G0RVK1
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GD3
Query on GD3

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Download CCD File 
A
GADOLINIUM ION
Gd
RJOJUSXNYCILHH-UHFFFAOYSA-N
 Ligand Interaction
NO3
Query on NO3

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Download CCD File 
A
NITRATE ION
N O3
NHNBFGGVMKEFGY-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

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Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
A
L-PEPTIDE LINKINGC5 H7 N O3GLU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.163 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 152.450α = 90.00
b = 44.830β = 101.11
c = 57.520γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
REFMACrefinement
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationCountryGrant Number
National Science Foundation (United States)United States1069091

Revision History 

  • Version 1.0: 2017-01-04
    Type: Initial release
  • Version 1.1: 2017-09-20
    Type: Author supporting evidence